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J. G. STAUNTON.

. 'ASSEMBLING BOLT.

No. 314,075. Patented Mar. 17, 1885;

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J. GALUSHA S'IAUNTON, OF ELLICOTTVILLE, NEYV YORK.

ASSEMBLING=BOLT.

EQPEGIPICATIOIT forming part of Letters Patent No. 314,075, dated March 17, 1885.

(No mode To all whont it may concern:

Be it known that I, J. GALUSHA S'rauu'ron, a citizen of the United States, residing at El- ]icottville, in the county of Oattaraugus and State of New York, have invented new and useful Improvements in Assembling-Bolts, of which the following is a specification.

My invention relates to that class of bolts used for fastening together removable parts, and generally known as assembling-bolts.

The object of my improvement is to provide such a fastening adapted to secure the outer parts from the inner side without piercing the exterior surface ofthe fastened parts, and to provide such a fastening particularly adapted for the construction of buildings which have removable parts. My improved fastening affords a strong hold and may be easily removedthat is, its parts may be easily separated from and without injury to the assembled fastened parts. It consists of three parts viz., a screw-socket having a closed slotted end, a bolt or tie-rod having a T-head on its entering end, a shoulder, rim-head, or projection on the other end, and a forked wedge, whereby when the parts to be fastened are properly assembled the screw-socket receives the T-head of the bolt and the wedge is driven upon the shouldered end of the bolt against the inner assembled part.

In the accompanying drawings I have shown my improved fastening as applied to the roof of a building to fasten the battens upon the panels to the cross-ribbons,iu which the batten forms the outer assembled part, the panel the intermediate part, and the ribbon the inner or lower part of the roof structure.

Figure .1 represents in vertical section a portion of a roof having removable panels and battens secured by my removable fastening to the roof-ribbons supported upon the rafters; Fig. 2, a section of the fastening device on an enlarged scale; Fig. 3, the parts of the fastening device detached from each other; Fig. 4,

the screw-socket in cross-section and plan. Fig. 5 shows a screw-socket adapted to receive a cylindrical bolt or tie-rod.

The battens a are shown as covering the joints of the panels b, which are secured upon cross-ribbons a, nailed to the rafters d of the roof. In this application of the fastening device the batten is provided at points corresponding with the roof-ribbons with screwsockets e, the batten being first bored with recesses on its under side of a depth and diameter sufficient to allow said socket to be screwed therein flush with the flat under surface of the batten, so that the batten will have embedded metal sockets at intervals along its joining-surface. The socket has an exterior screw -thread cut from its open end, and is preferably made slightly tapering toward its open end to facilitate its being screwed firmly into the wood. Its other end is closed and has a slot, f, of sufficient width and length to receive the T-head of the fastening-bolt. The bolt on tie-rod g has its ends formed with holding projections, the entering end being a T-head, h, suiting the socket-slot, while the other end projection, t, may be of rim or other form adapted to receive the action of a wedge. Vhen the bolt is ofa flat form, it has a neck, j, just below its entering T-head,which permits it to turn readily when introduced into the slot of the socket, so as to bring its T-head upon the inner side of the closed end of the socket across the entering slot.

To render it certain that the arms or ends of the T-head are-in position across or at right angles to the socketslot f when the bolt 9 is entered therein,notches or seats 8 s are formed upon the inner side of the closed end of the socket on each side of its slot, so that in turning the bolt the ends of its T-head will fall into these seats, and thus prevent the bolt from being turned when entered and set within the socket.

The bolt must be of the desired length, so that when so adjusted its inner shouldered end will be in the proper relation to the inner or under side of the ribbon or inner assembled part to allow the wedge to be driven upon the bolt between its shoulder and the said inner assembled part. The wedge is forked to embrace the end of the bolt upon which it is driven to draw the bolt inward hard upon its screw-socket, and the lattcr,having a firm and secure hold in the wood by its screw-threads, clamps the outer part firmly upon the intermediate part, because the supporting part for the wedge being fixed the movement of the bolt and its socket-carrying part must be in ward. In applying this bolt fastening the bolt-head is connected to the outer part, so as not to pierce it, and such connection is made from the inner side of the structure, the bolt passing between the edges of the sheathing or panels and through the body of the ribbons, or otherwise fastening the assembled parts to suit the purpose for which it may be used.

hen a cylindrical bolt or tie-rod is used, the socket-closed end has an opening and slots to suit the form of bolt and T-head, as shown in Fig. 5.

I claini 1. In a fastening device for assembled parts, the con1bination,with the screw-socket formed with an end slot, of a T-headed bolt or tie-rod shouldered at its other end, and a forked wedge, substantially as described. 

